US Bridges

Walnut Street over Pony Ck

Good

Hutchinson County, South Dakota · Walnut ST Parkston · Structure no. 000000034063075

Built
2011
14 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
45
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Walnut Street over Pony Ck is a concrete continuous culvert carrying Walnut Street over Pony Ck in Hutchinson County, South Dakota. It was built in 2011, so it is 14 years old, younger than the South Dakota average of 48.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 45 vehicles a day, roughly 2% of them trucks, projected to reach 45 by 2032. The structure is 29 ft (8.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesWalnut Street
CrossesPony Ck
LocationWalnut ST Parkston
RouteCity Street 0
Coordinates43.39267, -97.98818
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating50.2 US tons
Inventory rating38.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length29 ft (8.7 m)
Longest span14 ft (4.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2022)
Projected traffic45 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Walnut Street over Pony Ck built?

It was built in 2011, making it 14 years old in 2025.

What condition is Walnut Street over Pony Ck in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does Walnut Street over Pony Ck carry?

About 45 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Walnut Street over Pony Ck?

The structure is 29 ft (8.7 m) long with a longest span of 14 ft (4.2 m).

Who owns Walnut Street over Pony Ck?

It is owned by the Town or Township Highway Agency.